Hydraulic beer-pump



(No Model.) 2 SheetsShee't 1.

J. L. SHIRING.

HYDRAULIC BEER PUMP. No. 444,994. Patented Jan; 20, 1891! l/WE 9.; Jal 57 677,?

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(No Model.) 2 Sheets-Sheet 2.

J. L. SHIRING. HYDRAULIC BEER PUMP.

No. 444,994. Patented Jan. 20,1891.

WITNESSES: A-

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. UNITED STATES PATENT Fries.-

JOSEPH L. SHIRING, OF ALLEGHENY, ASSIGNOR TO ROBERT lVELLENS, JOSEPH W ELLENS, AND THOMAS MORONEY, ALL OF PITTSBURG, PENNSYLVANIA.

HYDRAULIC SPECIFICATION forming part of Letters Patent No. M4,994, dated January 20, 1891.

Application filed August 1, 1890.

IO has for its object to provide a double'acting pump for forcing air into casks for beer or' other liquids, so as to supply means for (lischarging the liquid from the cask, said pump being arranged to act automatically and serve to keep the air in the air-cylinders up to the standard pressure.

It has also for its object to provide means whereby the action of the oppositely-moving pistons shall be rendered positive and whereby they will always operate irrespective of the muddy condition of the Water.

My invention consists in the peculiar combination and novel arrangement of parts, all of which will hereinafter be fully described in the annexed specification, and particularly pointed out in the claims, reference being had to the accompanying drawings, in which- Figure 1 is a front view of my improved pump; an d Fig. 2 is a vertical longitudinal sec tion of the same, taken on the line 2 2, Fig. 1.

In the accompanying drawings, in which the same letters indicate like parts in all the figures, A indicates a stand upon which is mounted the main pulimping-cylinders B B each of which is formed with a valve-chest C O, one of such cylinders and its valvechest being shown in section in Fig. 2 of the drawings, by reference to which it will be seen that the said chest is formed with annular ports 0 c, which are formed into extensions 0 0 which communicate with the upperand lower edge of the cylinder B, as shown, the said annular ports 0 0 being, however, disposed a short distance from the ends of the valve-chamber 0 as shown.

lVit-hin each of the valve-chambers (3 is located a tubular valve D, the heads (I (Z of which are enlarged to snugly fit the interior of the chamber, whereby an annular waterspace d is formed, with which communicate Serial No. 360,712. (No model.)

the lateral branches c c of the main or watersupply pipe E, the lower ends of said chamber opening into the exhaust-channel G, as shown.

Standards F project up from the pumpcylinders B B, upon which are supported the air-cylinders H H, each of which are formed with the air-inlets h 72, formed with the usual inwardly-opening valves h h and 6c the exhausts h h which open into a channel 7L3, with which connect the lateral branches J J of the air-pipe J, adapted to be connected with the beer-reservoir, (not shown,) said pipe being also provided with the usual pressure-gage I, as shown, in wardly-pressing valves K being provided for alternately closing the openings 71 during the operation of the pump.

L denotes the piston-heads which operate in the air-chambers H El, and M the pistons which operate in the pump-cylinders B B, said pistons L and M being connected by rods H, which pass into said cylinders through the stuffing-boxes m m, as shown. Upon each 75 of the rods H are secured for vertical adj ustment thereon the tappets n n, as shown.

0 0' indicate shafts mounted in a guide or support P, secured transversely of the frames F and intermediate the pump and air cylin- 8o ders, said shafts being adapted fora rocking movement in said support P. 'By reference to Fig. 1 of the drawings it will be observed that I arrange said shafts O 0 one above the other and form the oppositely-extending ends 0 o with parallel inclined arms N N, the lower ends a n of which are forked and embrace the rods Z Z between the tappets a a. The opposite ends 0 0 of the shafts O O are provided with oppositely-projecting crankarms Q Q, which are connected by means of the angle-links q q with the projecting stems R R of the valves D. By this construction it will be seen that should the shafts O 0 be rocked in a manner presently de- 9 5 scribed the arms Q Q, and links (1 q will serve to slide the valves D up or down.

S indicates atransverse guide-piece secured to the frame P, which serves as a bearing for the upper end of said stems R R, as shown.

T indicates a pipe, which connects the supply-pipe D with the air-pipe J, at the lower end of which is disposed a pressure-regulating valve of any well-known construction, said valve being formed with a stem which nor mally cuts oft the water-supply when the air in pipe J is up to standard pressure.

By my construction it will be seen that by providing a tubular valve and arranging the exhaust in the manner shown ample means are provided for the discharge of the water, the same exhausting through the valve when the pistons M are on the upstroke, the water in exhausting servingto effectually clean the valve-chamber from mud or dirt, thereby always keeping said chamber in a condition for the free easy movement of the valves D.

3y reference to Fig. 2 of the drawings it will be seen that the relation of the arms N N such that when the arm N is down, as shown, the upper tappet will be in engagement therewith, and the lower tappet a short distance below the same, thus providing for a partial movement of each of the pistons on their up-and-down motion before they will operate on the arms N N. By this arrangement 1 am enabled to overcome dead-centers and render the alternate movement of the pistons positive.

The operation of my improved pump is as follows: Assuming the parts to be in position shown in Fig. 1 and the pressure in the pipe J is up to standard, the stem of the pressureregnlating valve will have cut off the watersupply through the pipe E. Now, when the pressure in the pipe .I is decreased, the valve in the pressure-regulator will open and allow the water to enter into the pipe E and flow into both branch pipes e e, and should the piston M in the cylinder B be in the position shown in Fig. 2 the water will pass into the fluid-space d and out through the port 0 in under the piston M. At this time the piston in the opposite cylinder B would be near its uppermost position and the valve D in the position shown in dotted lines, Fig. 2, which position allows of an inlet through the portc to the cylinder B and a discharge from. the lower port. Now, as the water forces the piston M in the cylinder B up it causes the water on top of piston to discharge through the port a 0, through the hollow valve D, into the exhaust G. By the relation of the tappets n n and the arms N N it will be readily seen that the upper tappet on the rod Z, which is in its upper position, and the lower tappet on the rod Z, which is in its lowermost position, are both disposed some distance away from the ends of the said arms N N. By this arrangement the pistons M N in their reverse movement will have a movement equal to the space between the tappets before they will act on the arms N N. When the lower tappet on the rod L reaches the arm N, it, through the intermediate devices, will force the valve in the chamber 0' down to the position indicated by full lines in Fig. 2, the op posite rod Z, through its upper tappet, at the same time raising the valve in the chamber 0 to the position shown in dotted lines in the same figure, thus automatically reversing the movement of the pump-piston. During the operation of the pistons M N in the cylinders B B, as described, the pistons L in the cylinders H H will be drawing in air and forcing same into the pipe J in a manner clearly understood by reference to the drawings.

From the foregoing description, taken in connection with the drawings, the ad vantages and operation of my improved pump will readily appear. The same is very simple n its construction, being entirely automatic in its operation.

By connecting the pump-piston and the slide-valve in the manner described and providing a free play of the pistons before setting the valve for the reverse movements I am enabled to entirely overcome the deadcenters and render the pump positive and continuous in itsoperation to bring the airpressure in the air reservoir or pipe up to standard.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. A beer-pumping apparatus con'iprising two hydraulic-pump cylinders B B, valvechambers O C, connected therewith, slide- Valves operating therein, the air-cylinders H H, the pistons L M, operating in said pump and air cylinders, as shown, and devices intermediate the cylinders B B and valve chambers O 0, whereby the movement of the piston of one cylinder in one direction will serve to move the piston in the opposite cylinder in a reverse direction, substantially as shown and described.

2. A beer-pump comprising two cylinders B B, valve-chests O 0, connected therewith, a valve held to slide in each of said chests, a fluid-pressure main connected with said chests C C, air-chambers connected with each other and located above said cylinders B B, pistons M L, rods ZZ, connecting said pistons with each other and operating in the pump and air cylinders, respectively, and devices intermediate the rods Z Z and the said slidevalves, whereby said valves will be alternately shifted to start one of the pistons M down before the opposite piston reaches its uppermost limit, substantially as and for the'purpose described.

3. In a beer-pumping apparatus, the combination, with the pump-cylinders B B, the alternately-operating pistons M and L, the valve-chests O 0', connected with the pumpcylinders, formed each with ports 0 c 0 c arranged near their upper and lower ends, said parts connected with the upper and lower ends of the pump-cylinders, a fluid-supply pipe opening into said chests centrally of said ports, and the outlets G G in the bottom of said chests, of the tubular slide-valves D, having enlarged heads (1 d fitting the bore of the chests, whereby an annular fluid-space d between said enlarged heads is formed, and

the alternately-operated valvestems g, connected with the valves, and connections between said stems q and the oppositely-disposed pump piston-rods, substantially as and for the purpose described.

4. In a beei pumping apparatus, the combination of the pump-cylinders B B, the aircylinders H H, connected with each other and formed With inlet and outlet ports, as shown, the pistons L M, operating in the air and pump cylinders, respectively, the rods Z Z, connecting said pistons L M with valve-chests G 0, connected to said cylinders B B, the fluidsupply pipe E, connected with said chests, the chambers C of said chest formed With ports 0 c, communicating with said cylinders 13 B, valves D, operating in said chambers 0 said valves formed withproj ectin g stems R R, and a double set of rock shafts and levers alternately connected with the rods Z Z and the valve-stems R R, whereby the movement of the rods Z Z will impart a reverse movement to the stems R R, substantially as and for the purpose set forth.

5. In a beer-pom pin g apparatus, the combination, with the pump-cylinders B B, formed with Valve-chambers having ports 0 0 arranged to communicate with the upper and lower ends of the said cylinders, slide-valves operating in said chambers to alternately open and close said ports and formed With projecting stems, a fluid-supply pipe connected with said chambers, the air-cylinders H H, an air reservoir or pipe J, connecting said aincylinders, pistons L M, connected by rods Z Z, operating in said air and pump cylinders, respectively, and tappets n, secured upon said rods Z Z, of the rock-shaft O 0, formed with lever-arms N N and crank-arms Q Q, said arms NN adapted to be rocked by engagement with the said tappets, and the arms Q Q connected with the valve-stems R R, all arranged substantially as and for the purpose described.

0. In a beer-pu mpin g apparatus, the combination of a pair of pump-cylinders, each formed with a valve-chamber formed with the inlet and outlet ports 0 c and an exhaust G, a tubular valve operating in said chamber, adapted to alternately close and open said ports with the main supply, a fluid-supply pipe connected with said chambers, said valves formed with projecting stems, two aircylinders formed with inlet and outlet valves disposed above the pump-cylinders, vertically-reciprocating rods Z Z, operating in said cylinders and formed With pistons L and M on the ends thereof, as shown, an air-storage J, connected with the air-outlets of said aircylinders, a pressure-gage connected therewith, devices intermediate the rods Z Z and the valve-stems R R for connecting the rods alternately with the opposite valve-stems, whereby the valves D are alternately operated by the movement of the rods Z Z, a pipe connecting the fluid-supply and the air pipe J, and a pressure-regulating valve in said pipe adapted to close the fluid-supply pipe when air is up to standard in the pipe J, all arranged substantially as and for the purpose described.

JOSEPH L. SHIRING.

'Witnesses:

FRED G. DIETERIOH, ROBERT WELLENs. 

